Cumberland River Pollution: What's The Status?

is cumberland river polluted

The Cumberland River Compact has been working to restore the waterways of the Cumberland River, which have been affected by pollution. The river has been polluted by litter, toxic waste, and pathogens, which can cause health issues for local residents and wildlife. The presence of pathogens in the water indicates contamination by human or animal waste, which can cause gastrointestinal illnesses. The Tennessee Valley Authority has also been criticized for its toxic coal ash production, which has been detected in the water supply. Groups such as the Cumberland River Compact and Tennessee Riverkeeper have been working to improve water quality and address the issues affecting the river.

Characteristics Values
Pathogens Giardia and Cryptosporidium
Human or animal waste
Sewer overflows
Leaking sewer lines
Polluted stormwater
Undisposed pet waste
Methylmercury Coal-fired power plants
Coal ash
Hexavalent chromium
Sediment Loss of water quality
Loss of species
Sloughing
Flooding
Lack of riparian buffer
Litter More than 4,400 pounds of aquatic litter

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Pathogens and parasites in the water

The presence of pathogens in the Cumberland River is an indicator of contamination by human or animal waste. Pathogens like Giardia and Cryptosporidium, two of the most common waterborne disease-causing parasites in the US, can enter the river through sewer overflows, leaking sewer lines, and stormwater runoff that carries bacteria from pet waste. These pathogens can cause gastrointestinal illnesses, including headaches, diarrhea, cramps, and nausea, in individuals who come into contact with the contaminated water. Young children and immunocompromised individuals are particularly vulnerable to the harmful effects of these pathogens.

The Cumberland River Compact, a group dedicated to restoring the health of the river and its streams, has identified pathogen pollution as the most significant impairment to water quality in the basin. They attribute this issue to the impact of urbanization, agriculture, and mining on the river and its surrounding environment.

One of the major sources of pathogen pollution in the Cumberland River is the Tennessee Valley Authority, which owns several coal-fired power plants in the state. The Gallatin plant, for instance, generates approximately 235,000 tons of toxic coal ash annually, which is disposed of in wet-storage ponds. If the walls of these ponds fail, large amounts of toxic waste, including hexavalent chromium, can leak into the river and contaminate the water. This has raised concerns among local residents, as the health of the river directly impacts their drinking water sources and well-being.

To address the issue of pathogen pollution, the Cumberland River Compact employs various strategies. They focus on both preventing pollution before it enters the river and restoring the health of the river and its streams. Litter cleanup is one of their key initiatives, as litter, especially plastics, is a significant contributor to water pollution. The group has installed litter traps, such as the one placed in North Fork Ewing Creek, to help catch trash before it reaches the river. Additionally, they aim to educate locals about the unseen issues affecting the waterways, such as sediment and soil erosion, which can lead to flooding and loss of water quality.

By collaborating with partners in agriculture, urban centers, and mining communities, the Cumberland River Compact aims to address the root causes of water pollution and improve the overall health of the Cumberland River and its surrounding ecosystem. Their efforts are essential to ensuring the long-term well-being of the river and the communities that depend on it.

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Coal-fired power plants polluting the river

The Cumberland River, which runs through Tennessee, is facing a number of water quality issues. While litter and sediment are among the most visible pollutants, the river is also impacted by coal-fired power plants in the state.

The Tennessee Valley Authority owns six coal-fired power plants in Tennessee, including the Gallatin plant, which burns approximately four million tons of coal each year. The burning of coal at these plants produces a significant amount of toxic coal ash, which contains harmful substances such as hexavalent chromium. While the Gallatin plant disposes of this ash in wet-storage ponds, there are concerns that a failure of these ponds could result in the release of large amounts of toxic waste into the local area, including the Cumberland River.

The presence of hexavalent chromium in local well water has already been detected, and conservation groups have filed a lawsuit against the Tennessee Valley Authority, alleging a violation of the federal Clean Water Act. The burning of coal also releases methylmercury, a highly toxic form of mercury, into the environment, which has been listed as a top impairment for the Lake Cumberland watershed in the headwater region of the Cumberland River basin.

The impact of coal-fired power plants on the Cumberland River is a significant concern for local residents, particularly those who rely on private wells for their water supply. The pollution of the river not only affects the health of the local community but also the wildlife that inhabits the river and its surrounding areas.

Overall, the pollution of the Cumberland River by coal-fired power plants is a complex issue that requires collaboration between various stakeholders, including government agencies, conservation groups, and the power plant operators, to find effective solutions and improve the water quality of the river.

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Wet-storage pond walls and toxic waste

The Cumberland River in Tennessee has been facing pollution issues, with the Tennessee Valley Authority's Gallatin plant burning approximately four million tons of coal each year. The plant produces around 235,000 tons of toxic coal ash, which is disposed of in wet-storage ponds. These wet-storage ponds are a significant concern for local residents as a failure of the pond walls can lead to toxic waste reaching the local area, including the Cumberland River.

Wet-storage ponds, also known as waste stabilization ponds, are man-made depressions used for wastewater treatment. They are designed to reduce the organic content and remove pathogens from wastewater. These ponds are confined by earthen structures, and the wastewater enters on one side, spending several days in the pond undergoing treatment, and exiting as effluent on the other side. While these ponds are effective in treating wastewater, they also pose certain risks.

The organic matter in the wastewater serves as food for microorganisms, which convert it into carbon dioxide and water through their respiration process. This consumption of oxygen by the microorganisms leads to stabilization of the organic matter. However, it also contributes to the pollution problems due to oxygen consumption. Additionally, the bacteria, pathogens, and excess nutrients stored in these ponds can be harmful to human health and the environment if they contaminate surrounding waterways and groundwater.

The risks associated with wet-storage ponds become more pronounced during heavy rainfall or natural disasters. In storms, waste ponds can overflow, spilling sewage water and contaminating nearby waterways. Similarly, natural disasters like flooding or hurricanes can cause spills and leaks from containment ponds, leading to the release of toxic waste into the environment. Structural failures or collapses of pond walls can also result in the discharge of large amounts of contaminated wastewater, as seen in the incident involving a phosphogypsum waste pond in Florida.

To mitigate these risks, proper engineering solutions and management practices are essential. This includes the use of pond liners, such as concrete or synthetic polymeric materials, to prevent chemical infiltration into the soil or groundwater. Additionally, effective chemical treatments, monitoring systems, and strategies like waste minimization and containment systems can help ensure the safe and effective use of wet-storage ponds for waste management.

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Sediment and soil erosion

Soil erosion and the resulting siltation are significant issues affecting the Cumberland River. Silt refers to the dirt, soil, or sediment that is transported and deposited by water. While some silt is normal and healthy, human activities have led to excessive silt in the river, negatively impacting the water quality and the ecosystem.

Soil erosion occurs when soil is detached, transported, and deposited elsewhere. This is a natural process, but it can be accelerated by human activities and natural factors. In the case of the Cumberland River, human activities such as agriculture and construction have been identified as contributing factors. Additionally, natural factors like vegetation, climatic conditions, and soil characteristics also play a role in soil erosion.

Vegetation is the most important factor influencing soil erosion. A healthy vegetative cover binds the soil, making it resistant to runoff and shielding it from rain. The amount, intensity, and frequency of rainfall, as well as temperature variations, also impact erosion rates. For example, frequent rainfall increases runoff, and rapidly thawing soil can lead to increased erosion.

Soil characteristics, such as texture, also determine how susceptible soil is to erosion. Soils with a larger amount of medium (silt)-sized particles are more prone to erosion than clay or sandy soils. The ground slope, including its length, grade, and surface quality, also affects the potential for erosion. Longer slopes, steeper grades, and smoother surfaces increase the likelihood and speed of erosion.

The excess soil transported by the river can lead to sedimentation, where it drops out of the water and remains in the stream. This process can clog the habitats of fish, insects, and other river life, interfering with their ability to breathe, feed, and reproduce. It also alters important components of the aquatic habitat, such as light availability, temperature, depth, and water flow, which are essential for the survival of native aquatic species.

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Litter and plastic pollution

The Cumberland River Compact is a group dedicated to restoring the streams of the Cumberland River Basin. One of the ways they do this is by cleaning up litter, which is a highly visible issue. In 2022, Tennessee Riverkeeper removed over 4,400 pounds of aquatic litter from the Cumberland River.

The Metro Council has approved the placement of litter traps in the North Fork Ewing Creek and Seven Mile Creek to help address this issue. These traps are designed to catch trash and debris before they enter the river. The Cumberland River Compact also works to educate citizens about the impact of littering, which not only creates an eyesore but also impairs fishing and water quality.

The presence of litter and plastic pollution in the river is just one of several issues affecting the health of the Cumberland River Basin. Other impairments to water quality include pathogen pollution, siltation, and methylmercury contamination, which is a highly toxic form of mercury that enters waterways when coal is burned at power plants.

The Tennessee Valley Authority has come under fire for its coal-fired power plants, which produce large amounts of toxic coal ash. This ash is disposed of in wet-storage ponds, but there are concerns that if these ponds fail, large amounts of toxic waste could reach the Cumberland River.

Frequently asked questions

Yes, the Cumberland River is polluted. In 2022, Tennessee Riverkeeper removed 4,400 pounds of aquatic litter from the river. The river and its tributaries around Nashville are collection zones for litter, which often flows into creeks and rivers after rain events via drainage systems.

The Tennessee Valley Authority (TVA) owns six coal-fired power plants in Tennessee, including the Gallatin plant, which burns approximately four million tons of coal each year. The plant produces roughly 235,000 tons of toxic coal ash, which is disposed of in wet-storage ponds. If a wet-storage pond wall fails, large amounts of toxic waste can reach the Cumberland River.

The Cumberland River Compact is working to restore the waterways through litter cleanups and the installation of litter traps. The Metro Council approved an agreement to place a litter trap in the North Fork Ewing Creek, which is a waterway that feeds into the Cumberland River. The Compact is also working to improve the water quality of the river by addressing issues such as sediment and pathogen pollution.

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